Home / 187,189.76-258,321.87-102,306.82

Finding the Fourth Proportional to 187,189.76, 258,321.87 and 102,306.82

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Solution

The fourth proportional to 187,189.76, 258,321.87 and 102,306.82 is: 141,183.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,189.76 : 258,321.87 = 102,306.82 : x
  2. Step 2: Convert to fraction form
    187,189.76/258,321.87 = 102,306.82/x
  3. Step 3: Cross multiply
    187,189.76x = 258,321.87 × 102,306.82
  4. Step 4: Simplify right side
    187,189.76x = 26,428,089,056.15
  5. Step 5: Solve for x
    x = 26,428,089,056.15/187,189.76
  6. Step 6: Final answer
    x = 141,183.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.